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Finding the Fourth Proportional to 5,520, 7,618.08 and 3,036.48

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Solution

The fourth proportional to 5,520, 7,618.08 and 3,036.48 is: 4,190.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520 : 7,618.08 = 3,036.48 : x
  2. Step 2: Convert to fraction form
    5,520/7,618.08 = 3,036.48/x
  3. Step 3: Cross multiply
    5,520x = 7,618.08 × 3,036.48
  4. Step 4: Simplify right side
    5,520x = 23,132,147.56
  5. Step 5: Solve for x
    x = 23,132,147.56/5,520
  6. Step 6: Final answer
    x = 4,190.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.